CN104238594A - Temperature control and test system and method for fuel cell - Google Patents
Temperature control and test system and method for fuel cell Download PDFInfo
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- CN104238594A CN104238594A CN201410475394.6A CN201410475394A CN104238594A CN 104238594 A CN104238594 A CN 104238594A CN 201410475394 A CN201410475394 A CN 201410475394A CN 104238594 A CN104238594 A CN 104238594A
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Abstract
The invention discloses a temperature control and test system for a fuel cell. The temperature control and test system comprises the fuel cell, two water cavities, a constant temperature water tank, two collector plates, a plurality of temperature sensors, a plurality of semiconductor refrigeration devices, a driving circuit, a reversing circuit, a temperature controller and a data acquisition system. The invention further discloses a temperature control and test method for the fuel cell. According to the temperature control and test system and method for the fuel cell, uniform distribution of the surface temperature of the fuel cell can be achieved, response time of temperature control is shortened, and the temperature control range is widened.
Description
Technical field
The present invention relates to a kind of temperature to control and test macro and method, the temperature being specifically related to a kind of fuel cell controls and test macro and method.
Background technology
In the fields such as fuel cell, the energy and electronics, need to accomplish accurately to control components and parts temperature, temperature-control range is fast, and temperature-responsive is fast.For fuel cell, the heat management of fuel cell is one of major issue affecting its engineer applied.One of groundwork of battery thermal management is that temperature controls.Battery temperature controls conventional method or means have: heating rod (pad), Air flow, recirculated water and constant temperature oven.The major defect of above method is: the temperature control mode of fuel cell mostly is convection heat transfer method, and temperature distributing disproportionation is even, makes the poor repeatability of battery testing; It is longer that fuel battery temperature controls the response time, is especially unfavorable for the research of battery variable working condition and dynamic perfromance; Fuel cell controllable temperature scope is narrower, cannot realize the low-temperature cool starting test of fuel cell.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, the temperature providing a kind of fuel cell controls and test macro and method, this system and method can make being uniformly distributed of fuel cell surface temperature, and shortens the temperature controlled response time, widens temperature controlling range.
For achieving the above object, the temperature of fuel cell of the present invention controls and test macro comprises fuel cell, two water cavities, Water Tank with Temp.-controlled, two collector plate, some temperature sensors, some semiconductor cooling devices, driving circuit, commutating circuit, temperature controller and data acquisition system (DAS)s;
Two collector plate are between two water cavities, and two collector plate and two water cavities are fixedly connected with, fuel cell is held between two collector plate, each semiconductor cooling device is uniformly distributed in two collector plate, two water cavities are equipped with water inlet and water delivering orifice, the water delivering orifice of Water Tank with Temp.-controlled is connected with the water inlet of first water cavity, the water delivering orifice of first water cavity is connected with the water inlet of second water cavity, the water delivering orifice of second water cavity is connected with the water inlet of Water Tank with Temp.-controlled, two collector plate all offer some thermometer holes, temperature sensor is positioned at described thermometer hole,
The output terminal of each temperature sensor is connected with the input end of data acquisition system (DAS), the output terminal of data acquisition system (DAS) is connected with the input end of temperature controller, the output terminal of temperature controller is connected with the control end of commutating circuit, the output terminal of commutating circuit is connected with the input end of driving circuit, and the output terminal of driving circuit is connected with the control end of each semiconductor cooling device.
The quantity of described semiconductor cooling device is eight, is evenly provided with four semiconductor cooling devices in each collector plate;
The quantity of the thermometer hole in each collector plate is 16, and each collector plate is evenly divided into four regions, and four semiconductor cooling devices are positioned at different regions, and all has four temperature sensors in each region.
Two collector plate and two water cavities all offer threaded hole, and two collector plate and two water cavities are fixedly connected with by the threaded hole in the threaded hole on screw bolt passes first water cavity, the threaded hole in first collector plate, second collector plate and the threaded hole on second water cavity.
The output terminal of described temperature sensor is connected by wire with the input end of data acquisition system (DAS), and the side opening of collector plate is provided with sensor line outlet groove, and wire is embedded in described sensor line outlet groove.
The water delivering orifice of described Water Tank with Temp.-controlled is connected by water pump with between the water inlet of first water cavity.
Described temperature controller is PID controller.
The temperature of fuel cell of the present invention controls and method of testing comprises the following steps:
Each temperature sensor detects the temperature information of fuel cell diverse location in real time, data acquisition system (DAS) obtains the temperature information of the fuel cell diverse location that each temperature sensor detects, then the temperature information of described fuel cell diverse location is forwarded in temperature controller, the medial temperature of the fuel cell surface that the temperature information of temperature controller fuel cell diverse location must contact with each region, when the medial temperature of the fuel cell surface contacted with any one region is more than or equal to pre-set threshold value, then produce the first control signal, then described first control signal is input in commutating circuit, commutating circuit according to described first control signal control inputs to the sense of current in driving circuit, driving circuit is made to drive the surface of the described semiconductor cooling device pair fuel cell contacted with this region to lower the temperature, when the medial temperature of the fuel cell surface contacted with any one region is less than or equal to pre-set threshold value, then produce the second control signal, and described second control signal is input in commutating circuit, commutating circuit to the sense of current in driving circuit, makes driving circuit drive the surface of the described semiconductor cooling device pair fuel cell contacted with this region to heat up according to described second control signal control inputs,
Water simultaneously in Water Tank with Temp.-controlled enters in first water cavity through the water inlet of first water cavity, realize lowering the temperature to each semiconductor cooling device in first collector plate, water in first water cavity enters into second water cavity through the water inlet of the water delivering orifice of first water cavity and second water cavity successively, realize lowering the temperature to each semiconductor cooling device in second collector plate, and then enter into Water Tank with Temp.-controlled through the water delivering orifice of second water cavity.
The present invention has following beneficial effect:
The temperature of fuel cell of the present invention control and test macro and method in the process controlling fuel cell surface temperature, first pass through the temperature information of the real-time detection fuel cell surface each position of temperature sensor, then the temperature information of described fuel cell surface each position is forwarded in temperature controller through data acquisition system (DAS), the temperature information of temperature controller fuel cell surface each position obtains the medial temperature of the fuel cell surface contacted with each region, when the medial temperature on the surface of the fuel cell contacted with any one region is not in preset range, the medial temperature on the surface of the fuel cell then being driven the adjustment of the semiconductor cooling device of the correspondence in this region to contact with this region by commutating circuit and driving circuit, thus the control realized fuel cell surface temperature, shorten the temperature controlled response time, widen temperature controlled scope.In addition, described each semiconductor cooling device is uniformly distributed in two collector plate, thus can effectively make being uniformly distributed of fuel cell surface temperature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of water cavity 5 in the present invention;
Fig. 3 is the structural representation of collector plate 4 in the present invention;
Fig. 4 heats and cooling effect figure fuel cell 2 for adopting the present invention;
Fig. 5 adopts this present invention to scheme the response time of thermal perturbation.
Wherein, the water inlet, 12 of 1 be temperature sensor, 2 be fuel cell, 3 be semiconductor cooling device, 4 be collector plate, 5 be water cavity, 6 be driving circuit, 7 be commutating circuit, 8 be data acquisition system (DAS), 9 be temperature controller, 10 to be Water Tank with Temp.-controlled, 11 be water cavity is the water delivering orifice, 13 of water cavity is threaded hole, 14 be thermometer hole, 15 be sensor line outlet groove.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1, Fig. 2 and Fig. 3, the temperature of fuel cell of the present invention controls and test macro comprises fuel cell 2, two water cavities 5, Water Tank with Temp.-controlled 10, two collector plate 4, some temperature sensors 1, some semiconductor cooling devices 3, driving circuit 6, commutating circuit 7, temperature controller 9 and data acquisition system (DAS)s 8, two collector plate 4 are between two water cavities 5, and two collector plate 4 and two water cavities 5 are fixedly connected with, fuel cell 2 is held between two collector plate 4, each semiconductor cooling device 3 is uniformly distributed in two collector plate 4, two water cavities 5 are equipped with water inlet 11 and water delivering orifice 12, the water delivering orifice of Water Tank with Temp.-controlled 10 is connected with the water inlet 11 of first water cavity 5, the water delivering orifice 12 of first water cavity 5 is connected with the water inlet 11 of second water cavity 5, the water delivering orifice 12 of second water cavity 5 is connected with the water inlet of Water Tank with Temp.-controlled 10, two collector plate 4 all offer some thermometer holes 14, temperature sensor 1 is positioned at described thermometer hole 14, the output terminal of each temperature sensor 1 is connected with the input end of data acquisition system (DAS) 8, the output terminal of data acquisition system (DAS) 8 is connected with the input end of temperature controller 9, the output terminal of temperature controller 9 is connected with the control end of commutating circuit 7, the output terminal of commutating circuit 7 is connected with the input end of driving circuit 6, and the output terminal of driving circuit 6 is connected with the control end of each semiconductor cooling device 3.
It should be noted that, the quantity of described semiconductor cooling device 3 is eight, is evenly provided with four semiconductor cooling devices 3 in each collector plate 4, the quantity of the thermometer hole 14 in each collector plate 4 is 16, each collector plate 4 is evenly divided into four regions, four semiconductor cooling devices 3 are positioned at different regions, and in each region, all have four temperature sensors 1, two collector plate 4 and two water cavities 5 all offer threaded hole 13, threaded hole 13 on screw bolt passes first water cavity 5, threaded hole 13 in first collector plate 4, two collector plate 4 and two water cavities 5 are fixedly connected with by the threaded hole 13 in second collector plate 4 and the threaded hole 13 on second water cavity 5, the output terminal of temperature sensor 1 is connected by wire with the input end of data acquisition system (DAS) 8, the side opening of collector plate 4 is provided with sensor line outlet groove 15, wire is embedded in described sensor line outlet groove 15, be connected by water pump between the water delivering orifice of Water Tank with Temp.-controlled 10 and the water inlet 11 of first water cavity 5, temperature controller 9 is PID controller.
The temperature of fuel cell of the present invention controls and method of testing comprises the following steps:
Each temperature sensor 1 detects the temperature information of fuel cell 2 diverse location in real time, data acquisition system (DAS) 8 obtains the temperature information of fuel cell 2 diverse location that each temperature sensor 1 detects, then the temperature information of described fuel cell 2 diverse location is forwarded in temperature controller 9, the medial temperature on fuel cell 2 surface that the temperature information of temperature controller 9 fuel cell 2 diverse location must contact with each region, when the medial temperature on fuel cell 2 surface contacted with any one region is more than or equal to pre-set threshold value, then produce the first control signal, then described first control signal is input in commutating circuit 7, commutating circuit 7 according to described first control signal control inputs to the sense of current in driving circuit 6, driving circuit 6 is made to drive the surface of described semiconductor cooling device 3 to the fuel cell 2 contacted with this region to lower the temperature, when the medial temperature on fuel cell 2 surface contacted with any one region is less than or equal to pre-set threshold value, then produce the second control signal, and described second control signal is input in commutating circuit 7, commutating circuit 7 to the sense of current in driving circuit 6, makes driving circuit 6 drive the surface of described semiconductor cooling device 3 to the fuel cell 2 contacted with this region to heat up according to described second control signal control inputs,
Water simultaneously in Water Tank with Temp.-controlled 10 enters in first water cavity 5 through the water inlet 11 of first water cavity 5, realize lowering the temperature to each semiconductor cooling device 3 in first collector plate 4, water in first water cavity 5 enters into second water cavity 5 through the water delivering orifice 12 of first water cavity 5 and the water inlet 11 of second water cavity 5 successively, realize lowering the temperature to each semiconductor cooling device 3 in second collector plate 4, and then enter into Water Tank with Temp.-controlled 10 through the water delivering orifice 12 of second water cavity 5.
The present invention has following feature:
1) a kind of feedback mechanism of temperature information is adopted to realize the automatic adjustment of fuel cell 2 surface temperature; 2) arrange 4 block semiconductor refrigeration devices 3 (TEC112706) in collector plate 4 equably, it is of a size of 40 × 40 × 4mm, and its hot junction and cold junction can realize the temperature difference of 67 DEG C; 3) water cavity 5, collector plate 4 and fuel cell 2 are by becoming as a whole after bolt presses, temperature test and temperature-controlling system compact conformation; 4) Research on Automatic Measuring System of Temperature degree of accuracy is high, and temperature control is even, and response is very fast, can be used for the experimental study of battery cold start-up and dynamic perfromance.
Experimental result of the present invention is as shown in Fig. 4, Fig. 5 and table 1.Fig. 4 is for adopting native system to heating of battery and cooling effect figure.As seen from Figure 4, the heating and cooling of fuel cell 2 all can complete in 1 ~ 2 minute.According to conventional temperature control means, such as heating rod, the temperature control time then needs 2 ~ 3 hours, this shows that native system can significantly improve temperature control speed.Fig. 5 carries out the disturbance of lasting 2 DEG C in temperature controlled zone, fuel cell 2 one end, the temperature-responsive of fuel cell 2 other end under native system controls.This temperature-responsive time show temperature control facility inside battery uneven temperature distribution ability of regulation and control speed, as seen from Figure 5, the temperature-responsive time is all within 200 seconds; The battery surface Temperature Distribution that table 1 obtains for adopting native system, the maximum unevenness of temperature is 0.66 DEG C as can be seen from Table 1.
Table 1
Known by above analysis: the present invention utilizes the paltie effect of semiconductor material, can accurately control being uniformly distributed of battery surface temperature, shorten the temperature controlled response time, widen temperature controlling range.Water cavity 5 only has an import, an outlet, farthest ensures in use not leak.In addition, process of the present invention is simple, and other key components, as temperature controller 9, temperature sensor 1 and data acquisition system (DAS) 8 etc. all directly can buy acquisition.
Claims (7)
1. the temperature of a fuel cell controls and test macro, it is characterized in that, comprise fuel cell (2), two water cavities (5), Water Tank with Temp.-controlled (10), two collector plate (4), some temperature sensors (1), some semiconductor cooling devices (3), driving circuit (6), commutating circuit (7), temperature controller (9) and data acquisition system (DAS)s (8);
Two collector plate (4) are positioned between two water cavities (5), and two collector plate (4) and two water cavities (5) are fixedly connected with, fuel cell (2) is held between two collector plate (4), each semiconductor cooling device (3) is uniformly distributed in two collector plate (4), two water cavities (5) are equipped with water inlet (11) and water delivering orifice (12), the water delivering orifice of Water Tank with Temp.-controlled (10) is connected with the water inlet (11) of first water cavity (5), the water delivering orifice (12) of first water cavity (5) is connected with the water inlet (11) of second water cavity (5), the water delivering orifice (12) of second water cavity (5) is connected with the water inlet of Water Tank with Temp.-controlled (10), two collector plate (4) all offer some thermometer holes (14), temperature sensor (1) is positioned at described thermometer hole (14),
The output terminal of each temperature sensor (1) is connected with the input end of data acquisition system (DAS) (8), the output terminal of data acquisition system (DAS) (8) is connected with the input end of temperature controller (9), the output terminal of temperature controller (9) is connected with the control end of commutating circuit (7), the output terminal of commutating circuit (7) is connected with the input end of driving circuit (6), and the output terminal of driving circuit (6) is connected with the control end of each semiconductor cooling device (3).
2. the temperature of fuel cell according to claim 1 controls and test macro, it is characterized in that,
The quantity of described semiconductor cooling device (3) is eight, is evenly provided with four semiconductor cooling devices (3) in each collector plate (4);
The quantity of the thermometer hole (14) in each collector plate (4) is 16, each collector plate (4) is evenly divided into four regions, four semiconductor cooling devices (3) are positioned at different regions, and all have four temperature sensors (1) in each region.
3. the temperature of fuel cell according to claim 1 controls and test macro, it is characterized in that, two collector plate (4) and two water cavities (5) all offer threaded hole (13), and two collector plate (4) and two water cavities (5) are fixedly connected with by the threaded hole (13) on the threaded hole (13) on screw bolt passes first water cavity (5), the threaded hole (13) on first collector plate (4), second collector plate (4) and the threaded hole (13) on second water cavity (5).
4. the temperature of fuel cell according to claim 1 controls and test macro, it is characterized in that, the output terminal of described temperature sensor (1) is connected by wire with the input end of data acquisition system (DAS) (8), the side opening of collector plate (4) is provided with sensor line outlet groove (15), and wire is embedded in described sensor line outlet groove (15).
5. the temperature of fuel cell according to claim 1 controls and test macro, it is characterized in that, is connected between the water delivering orifice of described Water Tank with Temp.-controlled (10) and the water inlet (11) of first water cavity (5) by water pump.
6. the temperature of fuel cell according to claim 1 controls and test macro, and it is characterized in that, described temperature controller (9) is PID controller.
7. the temperature of fuel cell controls and a method of testing, it is characterized in that, the temperature based on fuel cell according to claim 2 controls and test macro, comprises the following steps:
1) each temperature sensor (1) detects the temperature information of fuel cell (2) diverse location in real time, data acquisition system (DAS) (8) obtains the temperature information of fuel cell (2) diverse location that each temperature sensor (1) detects, then the temperature information of described fuel cell (2) diverse location is forwarded in temperature controller (9), the medial temperature on fuel cell (2) surface that the temperature information of temperature controller (9) fuel cell (2) diverse location must contact with each region, when the medial temperature on fuel cell (2) surface contacted with any one region is more than or equal to pre-set threshold value, then produce the first control signal, then described first control signal is input in commutating circuit (7), commutating circuit (7) according to described first control signal control inputs to the sense of current in driving circuit (6), driving circuit (6) is made to drive the surface of described semiconductor cooling device (3) to the fuel cell (2) contacted with this region to lower the temperature, when the medial temperature on fuel cell (2) surface contacted with any one region is less than or equal to pre-set threshold value, then produce the second control signal, and described second control signal is input in commutating circuit (7), commutating circuit (7) to the sense of current in driving circuit (6), makes driving circuit (6) drive the surface of described semiconductor cooling device (3) to the fuel cell (2) contacted with this region to heat up according to described second control signal control inputs,
Water simultaneously in Water Tank with Temp.-controlled (10) enters in first water cavity (5) through the water inlet (11) of first water cavity (5), realize lowering the temperature to each semiconductor cooling device (3) in first collector plate (4), water in first water cavity (5) enters into second water cavity (5) through the water delivering orifice (12) of first water cavity (5) and the water inlet (11) of second water cavity (5) successively, realize lowering the temperature to each semiconductor cooling device (3) in second collector plate (4), and then enter into Water Tank with Temp.-controlled (10) through the water delivering orifice (12) of second water cavity (5).
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| CN201410475394.6A CN104238594B (en) | 2014-09-17 | 2014-09-17 | The temperature of a kind of fuel cell controls and test system and method |
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| CN201410475394.6A CN104238594B (en) | 2014-09-17 | 2014-09-17 | The temperature of a kind of fuel cell controls and test system and method |
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| CN104238594B CN104238594B (en) | 2016-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544782A (en) * | 2019-09-06 | 2019-12-06 | 北京机械设备研究所 | Air-cooled fuel cell temperature control system and temperature control method |
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| EP1956670A1 (en) * | 2007-02-08 | 2008-08-13 | Enerday GmbH | Module for thermal conditioning of fuel |
| DE102013007561A1 (en) * | 2013-05-02 | 2013-11-28 | Daimler Ag | Method for operating polymer electrolyte membrane fuel cell stack for fuel cell system for vehicle, involves cooling flow channel of stack to temperature at which water condenses, during cooling operation when water is present in stack |
| CN203377328U (en) * | 2013-07-24 | 2014-01-01 | 中科宇图天下科技有限公司 | Microbial fuel cell with constant-temperature control |
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2014
- 2014-09-17 CN CN201410475394.6A patent/CN104238594B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070072029A1 (en) * | 2005-09-29 | 2007-03-29 | Kei Masunishi | Flow rate adjusting system and fuel cell system |
| EP1956670A1 (en) * | 2007-02-08 | 2008-08-13 | Enerday GmbH | Module for thermal conditioning of fuel |
| DE102013007561A1 (en) * | 2013-05-02 | 2013-11-28 | Daimler Ag | Method for operating polymer electrolyte membrane fuel cell stack for fuel cell system for vehicle, involves cooling flow channel of stack to temperature at which water condenses, during cooling operation when water is present in stack |
| CN203377328U (en) * | 2013-07-24 | 2014-01-01 | 中科宇图天下科技有限公司 | Microbial fuel cell with constant-temperature control |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110544782A (en) * | 2019-09-06 | 2019-12-06 | 北京机械设备研究所 | Air-cooled fuel cell temperature control system and temperature control method |
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